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Properties of the Number 11997

Eleven Thousand Nine Hundred Ninety-Seven

Basics

Value: 11996 → 11997 → 11998

Parity: odd

Prime: No

Previous Prime: 11987

Next Prime: 12007

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 2 × 31 × 43

Divisors: 1, 3, 9, 31, 43, 93, 129, 279, 387, 1333

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10111011011101

Octal: 27335

Duodecimal: 6B39

Hexadecimal: 2edd

Square: 143928009

Square Root: 109.5308175811721

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Decimal value of the bitmap of active segments in 7-segment display of the number n, variant 1: bits 0-6 refer to segments from top to bottom, left to right. A234691
Number of partitions of n with rank 3 (the rank of a partition is the largest part minus the number of parts). A101200
Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 1,3. A37578
a(n) = ∑i=0..n digsum7(i)3, where digsum7(i) = A053828(i). A231678
Numbers whose binary representation traces a non-selfcrossing circuit in the honeycomb lattice when each one of its bits, from the most significant to the least significant, is interpreted as a direction to proceed at each vertex. A255561
Number of integer partitions of n that are not of length 2 and do not contain n/2. A365825
a(n) is the number of edges formed by n-secting the angles of a nonagon (enneagon). A335783
Number of distinct sums i3 + j3 + k3 + l3 for 0<=i<=j<=k<=l<=n. A374711
a(n) = n*(25·n - 1)/2. A22282
Indices of primes of the form k2 - 11. A91273